Ventilator.



Patented Mar. '21, 1911.

R. L. GRESCY.

VENTILATOB.. APPLICATION HLM) No'v. a. 1909 lmllrlll.

S AI

FIQE.

VENTILATOR.

T o all whom Lt may concern.'

Be it known that I, RICHARD L. Cruiser, a citizen of the United States, residing at Chicago, .in the county of Cook and State of Illinois, have invented certain new and useful Improvements in ventilators, of which the following is a specification.

My invention relates to improvements in ventilators and has for its general object to provide a window Ventilating structure which may readily be associated with the ordinary window adapted to admit air into a room under advantageous conditions without undue draft and in a filtered state.

Various advantages of my invention will become apparent to those skilled in the art from the following description taken in conjunction with the accompanying drawings, in which- Figure 1 is an elevation, taken from the exterior of the building, showing the ventilator in position and with parts of the window sash broken away; Fig. 2 is a vertical section on line 2-2 of Fig 1; Fig. 3 is a plan view; and Fig. 4 is a perspective detail.

In the construction shown, I provide a casing, 10, preferably of a single length appropriate to the width of the window frame for direct coperation with the frame and sash on all sides. Said casing incloses a space which may be considered as divided into a delivery chamber, 11, and an .intake chamber, 12. The delivery chamber has a solid base, 13, which forms a seat to restv upon the interior window sill, a, of a frame A; solid end walls; a rear wall, 14, toward the interior of the room, preferably provided with a removable lower portion, 14, detachably secured by screws; and a top wall, 15. The top wall is provided with a series of screened outlets, 16, each equipped with a closure, 17, hinged as at 18 to swing from horizontal closing position to vertical open position at the rear and inner edge of the casing, and each closure may be provided with a latch, 19, as shown, whereby it may be secured in closed position.

The end walls of the casing project forward, or toward the exterior of the building, to partly inclose an overhanging intake chamber, 12, which has a screened inlet, 21, in yits base, preferably at an elevation above the base 13 of the outlet chamber; a solid front wall, 22, and a top wall, 23, shaped and positioned to receive in contact there- Specification of Letters Patent. Patented Rial', 21, 1911.

Application filed November 3, 1909.

Serial No. 526,051.

with the lower rail, l), of a window sash, B. The inner extremity of the top contact wall, 23, is preferably at a lower level than the outlet screens 16, so that a spacing strip, 24, secured along the rear edge of the wall 23 and supporting the screws 16, forms a shoulder for abutment against the .interior lower edge of the window sash The lower, front, or exterior, portion of the outlet chamber, 11, is closed by a vertical plate, 26, which extends from the level of the intake screen 21 preferably to a point below the level of the base 13 to form at its rear surface a shoulder or flange which may contact with the exterior edge of the sill, a. This plate 2G, which serves as a wind deiector for directing air into the inlet 21` is also equipped to act in part as a wind-break and dust collector.I and to this end is provided with a series of longitudinal ribs or edges, 2G', running preferably its full length and interspaced with corresponding grooves for purposes more fully to be described, and further the opening between the intake chamber 12 and the delivery chamber 11 is preferably bathed by a defiector 27 depending from the roof 23 of the intake chamber, appropriately in line with the plate 26. The closing of the front of the delivery chamber for a portion of the height forms in the base of the device a collection well in which material may be deposited, and the well may have lodged therein an open-topped metal receptacle 28, for the reception of a deodorizing or disinfecting material 28.

To aid in the retaining of the structure in place in the window, I preferably provide upon one end wall thereof a fixed cleat, 29, adapted for insertion in the sash slideway of the window frame, and at the other end a similarly shaped but removable cleat 29', which may be provided with an edge flange 30, fitting in a groove, 31, formed in the end of'the casing.

In operation, the ventilator is applied to the window as best shown in Fig. 2. The base 13 is placed upon the interior window sill,the permanent cleat 29 is inserted in one groove and the removable cleat 29 is slipped into placel in engagement with the opposite window sash guide, with its flange 30 engag ing in the groove 31 in the casing: then the window sash B is lowered until its lower rail. rests upon the top bearing member 23 and thus the structure is firmly held in place completely filling the space between the window sash and the sill, and making jointat all of its points on contact with the window sash and frame. Now it will be seen that one or all of the closures 17 may be opened to tree one or more of the outlets 16, and assuming the central outlet to be open as illustrated in the drawing', it will be apparent that air flowing against the building can pass under the overhanging intake chamber 12 to encounter the deiiecting wall 2T and pass up into the chambers 11 and 12 of the ventilator'. The provision ot' the projections, 2G, on the face ot' the plate 2G breaks up the direct draft and causes eddy currents which prevent the air from entering the ventilator with too great torce and to tend to cause dust to settle before it encounters the screen. Further, such air as enters through the screened inlet 21 encounters the balile members, 27, and is deflected downward as indicated by the arrows in the drawing, so that it makes its escape through the screened outlet 16 without violence or undue draft. Also the vertical position of the cover 17 when open tends to prevent the creation of a draft in the room by directing the incoming cold air upwardly for eii'ective dissemination throughout the room. Manifestly, the screen iny the inlet will largely prevent the entrance of dirt, but such dustl as linds its way into the air chamber within the ventilator is largely restrained by the outlet lscreen 16, and falls into the well in the base of the chamber 11, or the receptacle therein, which may be removed through the opening closed by the detachable portion 14/ ot the rear wall of the ventilator.

Vhile I have herein described in some detail a particular construction embodying my invention, it will be apparent to thoseA skilled in the art that ina-ny variations might be made in the embodiment thereof without departure from the spirit of the invention and within the scope of the appended claims.

What I claim is:

1. A window ventilator comprising a rectangular casing adapted to extend between the sash guides of awindow providing an interior chamber, a transversely and outwardly extending angular casing open at its bottom, inclosing a chamber which communicates longitudinally with said interior chamber, a foraniino'u's plate covering said bottom opening, a longitudinally corrugated wind-break plate immediately below and in Aa plane at substantial right angles to the foraminous plate, a `fixed downwardly-extending delector longitudinally separating said chambers, a dust receiving' receptacle wholly within the interior chamber into which air is directed by said Xed deiiector, and means at the outer ends of said exterior casing for securing the device within the grooves ot' the sash guides.

2. A window ventilator comprising a substantially angular casing extending from sash groove to sash grooveacross the opening under the window sash, a laterally extending easing of less vertical height but longitudinally eo-eXte-nsive therewith, the latter easing adapted to lie directly under the inner lower sash and the former casing entirely within the sash, and a cleat removably seeured to one of the ends of the latter casing, and a fixed cleat on the other end adapted to enter the sash groove in the window casing to secure the device in position.

In testimony 'whereof I hereunto set my hand in the presence ot two witnesses.

IV. LINN ALLEN, MARY It. ALLEN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

